3217272745 has 8 divisors (see below), whose sum is σ = 3868997184. Its totient is φ = 2568304944.

The previous prime is 3217272739. The next prime is 3217272757. The reversal of 3217272745 is 5472727123.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3217272745 - 2⁵ = 3217272713 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3217272698 and 3217272707.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 686589 + ... + 691258.

It is an arithmetic number, because the mean of its divisors is an integer number (483624648).

Almost surely, 2^3217272745 is an apocalyptic number.

It is an amenable number.

3217272745 is a deficient number, since it is larger than the sum of its proper divisors (651724439).

3217272745 is a wasteful number, since it uses less digits than its factorization.

3217272745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378319.

The product of its digits is 164640, while the sum is 40.

The square root of 3217272745 is about 56721.0079688293. The cubic root of 3217272745 is about 1476.2592322408.

Adding to 3217272745 its reverse (5472727123), we get a palindrome (8689999868).

The spelling of 3217272745 in words is "three billion, two hundred seventeen million, two hundred seventy-two thousand, seven hundred forty-five".